PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/30-14:27:40
G07     342.1          61.2                9.3 +/-    0.46      10.5 +/-    0.46  0.080 / 0.270
G08     100.8          51.7               10.7 +/-    0.55      13.3 +/-    0.55  0.090 / 0.220
G09     196.1          75.2                9.3 +/-    0.87       9.5 +/-    0.87  0.050 / 0.050
G11     145.3          13.8               11.5 +/-    1.90      29.5 +/-    1.90  0.040 / 0.050
G23     154.8          40.5               12.2 +/-    0.48      17.6 +/-    0.48  0.030 / 0.040
G27     56.6           32.7                8.0 +/-    0.70      13.3 +/-    0.70  0.030 / 0.040
G28     235.4          24.3                9.8 +/-    1.90      19.4 +/-    1.90  0.040 / 0.070
G30     303.5          37.8                8.0 +/-    0.61      12.0 +/-    0.61  0.040 / 0.080